In today's business world, more and more people are on the go. This means more travel, and many more hotel stays. So why not apply for a card that rewards you with free hotel stays? There are some cards that provide airline, car rental, and hotel rewards, but they usually don't provide the benefits of a strict hotel rewards card -- like the ones sponsored by Hilton Hotels. Typically, you can get a free night for every four or five stays at a hotel -- and that's if you use the card strictly on the room. Rewards also usually extend to dining and convenience stores, so you can always be picking up points while you're away from home. Check out this list of hotel rewards cards and see which one best fits your on-the-go needs.